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Tuesday, May 14, 2019

TLMweb® 10TH CLASS BIOLOGY-CHLOROPLAST


10TH CLASS BIOLOGY-CHLOROPLAST

10TH CLASS BIOLOGY-CHLOROPLAST

The green coloured plastids are called chloroplasts. They trap solar energy and participate in photosynthesis. Each chloroplast is a membraneous structure, consisting of 3 membranes. The third layer forms stacked sac like structures called grana. The intermediary fluid filled colourless portion is called as stroma. Chloroplast has substances which capture sunlight. They are called photosynthetic pigments. Chlorophyll is a photosynthetic pigment. It contains one atom of magnesium. Two major kinds of chlorophylls are associated with thylakoid membranes.

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